Keystone Model MB Check Valve

Dual plate spring-loaded wafer configuration designed to protect piping systems handling gas or liquid media.

The Keystone Model MB is a dual plate, spring loaded, wafer style check valve designed for the protection of gas or liquid piping systems.

主要功能

Light weight, versatile design, 80 to 90% lighter than conventional full-body check valves.? This reduces pipe supports, simplifies piping, easier, less costly installation.
Spring-loaded, double door design has low cracking pressure.
Discs open 85° to ensure positive closing.
Materials and trims available for all services within temperature range.
Extended leg springs prevent seat wear caused by scrubbing.
Springs are precisely calculated to increase the responsiveness of the disc, thus reducing damaging effects of water hammer.
Resilient or metal-to-metal seat available.
Buna-N, FKM, EPDM (and other materials as required) molded into the body.